<template>
  <div class="login_container">
   <div class="login_box">
     <!-- 头像-->
     <div class="avatar_box">
       <img src="../assets/Egame.png" alt="" />
     </div>
     <!-- 表单-->
     <el-form ref="loginFormRef" label-width="0px" class="login_info" :model="loginForm" :rules="loginFormRules">
       <!-- 用户名-->
       <el-form-item prop="userAccount">
         <label for="userAccount">账号</label>
         <el-input id="userAccount" prefix-icon="iconfont icon-user" v-model="loginForm.userAccount"></el-input>
       </el-form-item>
       <!-- 密码-->
       <el-form-item prop="userPassword">
         <label for="userPassword">密码</label>
         <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.userPassword" type="password" ></el-input>
       </el-form-item>
       <!-- 按钮-->
       <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
       </el-form-item>
     </el-form>
   </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 登录表单的数据对象
      loginForm: {
        userAccount: '1063502013',
        userPassword: '567ghs567',
        useRequestBody: false
      },
      // 表单的验证规则
      loginFormRules: {
        // 验证用户名时候合法
        userAccount: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        userPassword: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return;
        const { data: res } = await this.$http.post('/api/index/userLogin', this.loginForm)
        // console.log(data)
        if (res.code != 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        // 1.将登录成功后的token保存到客户端的sessionstorage中
        //  1.1姓名中出了登录之外的其他api接口，必须在登录后才能访问
        //  1.2 token应在当前网站打开期间生效，所以token保存在sessionstroage中
        window.sessionStorage.setItem('token', res.data )
        // 2.通过编程式导航跳转到后台主页，路由地址是/home
        this.$router.push("/home")
      });
    }
  }
}
</script>

<style lang="less" scoped>
 .login_container{
  background-color: #2b4b6b;
  height: 100%;
 }
 .login_box{
   width: 450px;
   height: 300px;
   background-color: #fff;
   border-radius: 3px;
   position: absolute;
   top: 50%;
   left: 50%;
   transform: translate(-50%,-50%);

   .avatar_box{
      height: 130px;
      width: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10 #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%,-50%);
      background-color: #fff;
      img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
   }
   .btns{
     display: flex;
     justify-content: flex-end;
   }
   .login_info{
     position: absolute;
     bottom: 0;
     width: 100%;
     padding: 0 10px;
     box-sizing: border-box;
   }
 }
</style>
